I don’t think I had this problem before but today, I was trying to make over my Ubuntu 19.04. But there is something that bugging me. I cannot install Gnome Shell Extension on Ubuntu 19.04. Every time I try to install or enable it via Firefox or Google Chrome, I get the following error:
We cannot detect a running copy of GNOME on this system, so some parts of the interface may be disabled. See our troubleshooting entry for more information.
If I use Mozilla Firefox, I got this error:
I don’t know what is going on here. I have chrome-gnome-shell package installed on my Ubuntu 19.04 which is should be works.